I’m curious, you are putting 50 clients per server, so:
1- What specs for the server?
2= What specs for the client?

We’ve definitely not be anywhere close to that.

It sounds like you have never been through an installation, or you have never seen the bottom line from a CFO’s perspective. Having been through several, I can tell you that you need to understand there is more than just the cost of the physical equipment. I’ll give you an example I’ve one I am doing right now, very small, 250 users. Rather than buy 250 $800 workstations, I am buying 250 $150 think clients. Now, I am offsetting that with buying 5 servers to handle the virtualized workstations. Cost:

250 workstations @ $800 each is $200,000
250 thin clients @ $150 each is $37,500
5 servers handling workstations is $50,000

Savings so far: $112,500!

Now, we still need the VDI software, in this case VMWare and VDI

Cost is : $25,000 for 200VDI licenses and full VMware enterprise.

Savings still? Yes. $87,500.

Cost of rollout is also less in money and time. Particularly time. Estimated time to roll out workstations is 30 minutes to 1 hour per machine.
250 workstations @ 30 minutes = 125 hours best estimate
250 thin clients @ 10 minutes = 42 hours worst estimate

It’s about 3 times faster.

Finally, operational costs are where you really start seeing the difference.

Power consumption on a thin client is 4-10 times less than a workstation.

Repairing or rebuilding a physical workstation will take anywhere from 2 hours to all day. A virtual workstation takes about 5 minutes.

Setting up a new workstation takes anywhere from 30 minutes to all day, it takes about 2 minutes for a thin client config.

Migrating a workstation to a new workstation, as in an upgrade, is a nightmare and can take all day, it takes 5 minutes with virtual desktop.

Flexibility to be anywhere, even remote, costs nothing extra with a virtualized setup and is inherent in the design.

The larger the organization, the higher the savings. Having deployed both thousands of workstations physically and virtually, I can tell you that the virtual config savings are significant.